201121000222210 has 8 divisors (see below), whose sum is σ = 362017800399996. Its totient is φ = 80448400088880.

The previous prime is 201121000222187. The next prime is 201121000222217. The reversal of 201121000222210 is 12222000121102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 200071434804921 + 1049565417289 = 14144661^2 + 1024483^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (201121000222217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10056050011101 + ... + 10056050011120.

Almost surely, 2^{201121000222210} is an apocalyptic number.

201121000222210 is a deficient number, since it is larger than the sum of its proper divisors (160896800177786).

201121000222210 is a wasteful number, since it uses less digits than its factorization.

201121000222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20112100022228.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201121000222210 its reverse (12222000121102), we get a palindrome (213343000343312).

The spelling of 201121000222210 in words is "two hundred one trillion, one hundred twenty-one billion, two hundred twenty-two thousand, two hundred ten".